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249202 (2008 DO31)
Classification: Main-belt Asteroid          SPK-ID: 2249202
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1217893936970926 5.5872e-08  
a 2.619909924603143 2.7214e-08 au
q 2.300832683344731 1.3749e-07 au
i 4.402606853205755 5.8302e-06 deg
node 119.0045461177024 7.5244e-05 deg
peri 74.90257049431848 7.9157e-05 deg
M 202.3149751496053 2.6205e-05 deg
tp 2459278.946985393284
(2021-Mar-05.44698539)
0.00011779 TDB
period 1548.916360150929
4.24
2.4133e-05
6.607e-08
d
yr
n .2324205549516702 3.6213e-09 deg/d
Q 2.938987165861556 3.0528e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      7135 days (19.53 yr)  
   first obs. used      2000-05-24  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65911  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:44:12  

Additional Information
 Earth MOID = 1.30534 au 
 Jupiter MOID = 2.02641 au 
 T_jup = 3.391 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO413152  
diameter diameter 3.373 km 0.392 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.032   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249202 (2008 DO31)          Discovered 2008-Feb-27 by LONEOS at Anderson Mesa
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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